Swept area
The Aerogen 6 has a blade diameter of 0.87 metres. This means it has a swept area, or capture area of 0.59 square metres. This is all important when comparing wind turbines, since it directly relates to the amount of passing wind energy
the turbine blades can intercept.
Aerogen 6 power output curve
The graph below shows the power produced (in watts) for the Aerogen 6 at different wind speeds, based on
data supplied by the manufacturer.
The green line shows the actual output that the wind turbine achieves at the given wind speed,
according to the manufacturers.The dashed line in the graph shows the theoretical maximum energy that this turbine could extract from the wind,
according to Betz's Law (59.3%). At a typical wind speed of
5 m/s, the Aerogen 6 is extracting
39.81 Watts of power from the wind, which is an efficiency of
87.11%.
How efficient is the Aerogen 6?
Wind turbines can only convert some of the energy in the wind into electricity. The graph here shows how efficient the
turbine is across the range of wind speeds you might get.
The orange line in the above graph shows the efficiency ranging from 0 to 1. The grey line is the previously mentioned maximum efficiency - The Betz Limit. If this limit is exceeded, the manufacturer's claims are not to be trusted!
While these graphs give an indication of the instantaneous power and efficiencies you might expect from the
Aerogen 6 turbine, working out annual power production is more complex.
Read more about the
Power Predictor
The A6 is available for around £900 (+VAT), with some variation depending on the options chosen. £620 for regulator and mounting.
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Holy mackerel, there's got to be an enormous profit being made there.!
Ridiculous amount of money for a little box of electronic components.!
This is what they must mean by 'cashing-in' big time.!